What Causes Uterine Fibroids During Pregnancy?

Uterine fibroids commonly manifest as menorrhagia (increased menstrual flow), prolonged menstrual periods, shortened menstrual cycles, or irregular vaginal bleeding. Abnormal uterine bleeding is most frequently associated with submucosal and intramural fibroids. Additionally, acute abdominal pain may occur when subserosal fibroids undergo torsion of their pedicle or red degeneration. Coexisting endometriosis or adenomyosis—conditions not uncommon in women with fibroids—may lead to dysmenorrhea. So, what causes uterine fibroids during pregnancy? Below, we address this question.

What Causes Uterine Fibroids During Pregnancy?

1. The development or growth of uterine fibroids during pregnancy may be triggered by a rapid rise in estrogen levels. Therefore, comprehensive prenatal examinations are essential throughout gestation. Pregnant women should also minimize consumption of foods contaminated with exogenous hormones and avoid taking hormonal medications without medical supervision. Unregulated hormone intake not only jeopardizes fetal development but also threatens maternal health. Hormonal imbalance—particularly elevated estrogen—is one of the primary etiological factors contributing to uterine fibroid formation.

2. Excessive emotional fluctuations or high levels of psychological stress during pregnancy may also contribute to the development of uterine fibroids. Hence, maintaining a calm, optimistic mindset is crucial. Pregnant women should learn effective strategies for managing mental stress, avoid extreme mood swings, and refrain from suppressing emotions.

3. Unhealthy dietary and lifestyle habits during pregnancy can increase the risk of developing uterine fibroids. In addition to adopting a balanced, nutritious diet, expectant mothers should establish regular sleep-wake patterns and engage in holistic physical self-care. Consistent prenatal check-ups are equally vital.

We hope the above information is helpful to you.